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Application of an improved terahertz high isolation e-plane power divider

A high isolation, terahertz technology, applied in the field of terahertz wireless communication, can solve problems such as energy leakage, reduce energy loss, achieve integrated miniaturization, and high isolation.

Active Publication Date: 2022-07-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of energy leakage in the above-mentioned prior art, the present invention provides an improved terahertz high-isolation E-plane power splitter and its application,

Method used

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Embodiment 1

[0048] This embodiment proposes an improved terahertz high isolation E-plane power divider with a center frequency of 100 GHz. The three-dimensional structure is as follows: figure 1 shown, including a main waveguide, an input waveguide connected to the center of one side of the broad side of the main waveguide, two parallel isolation waveguides connected to the other side of the broad side of the main waveguide, and two isolation waveguides connected between the two isolated waveguides branch structure; where, such as figure 2 As shown in the figure, the main waveguide and the input waveguide are both standard waveguide WR-8, the width of the wide side and the size of the narrow side are a=2.032 mm and b=1.016 mm, respectively; the width of the two isolation waveguides is b2; close to the main waveguide The branch structure on one side is the first branch structure, the other is the second branch structure, the lengths c1 of the first branch structure and the second branch s...

Embodiment 2

[0061] This embodiment provides a terahertz miniaturized mirror frequency suppression receiver front-end based on an improved terahertz high isolation E-plane power divider, the structure is as follows Image 6 As shown, it includes a first low-loss probe, a second low-loss probe, an intermediate frequency circuit and a terahertz circuit; the intermediate frequency circuit is arranged on the upper layer of the terahertz circuit, and the two pass through the first low-loss probe and the second low-loss probe. The loss probe is connected, so that the whole front end of the terahertz miniaturized image frequency suppression receiver is integrated in a circuit cavity of 30 mm×20 mm×20 mm, which ensures the realization of the circuit and realizes the miniaturization of the front end of the receiver.

[0062] The terahertz circuit includes a local oscillator tripler, a 135° 3 dB coupler, the improved terahertz high isolation E-plane power divider proposed in Example 1, and the first ...

Embodiment 3

[0068] This embodiment provides a terahertz miniaturized low-noise radiometer front end based on an improved terahertz high isolation E-plane power divider, the structure is as follows Figure 10 As shown, it includes a first low-loss probe, a second low-loss probe, an intermediate frequency circuit and a terahertz circuit; the intermediate frequency circuit is arranged on the upper layer of the terahertz circuit, and the two pass through the first low-loss probe and the second low-loss probe. The loss probe connection makes the whole front-end of the terahertz miniaturized low-noise radiometer integrated in a circuit cavity of 30 mm×20 mm×20 mm, which ensures the realization of the circuit and realizes the miniaturization of the front-end of the radiometer.

[0069] The terahertz circuit includes a local oscillator tripler, the improved terahertz high isolation E-plane power divider proposed in Example 1, a 180° 3 dB coupler, and the first quartz heterogenous integrated subhar...

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Abstract

The invention provides an improved terahertz high isolation E-plane power divider and its application, belonging to the technical field of terahertz wireless communication. The E-plane power divider includes a main waveguide, an input waveguide, two isolation waveguides and two branch structures , the left and right ends of the main waveguide are the first output end and the second output end respectively, the end of the input waveguide that is not connected to the main waveguide is the first input end, and the ends of the two isolation waveguides that are not connected to the main waveguide are the first isolation end and the second isolation end, the E-plane power divider is a left-right symmetrical structure. The present invention realizes high isolation of two output ports by arranging two branch structures between two isolation waveguides, and simultaneously suppresses energy leakage from the two isolation ends and reduces energy loss. Based on the above E-plane power divider, the present invention also proposes its application in the front-end of the terahertz miniaturized image frequency suppression receiver and the front-end of the terahertz miniaturized low-noise radiometer.

Description

technical field [0001] The invention belongs to the technical field of terahertz wireless communication, in particular to an improved terahertz high isolation E-plane power divider and its application. Background technique [0002] The power divider is a three-port passive component used for power distribution. It plays an indispensable role in microwave systems such as electronic countermeasures, communication systems, radar systems, and test and measurement instruments. The main purpose of the power divider is to synthesize power, distribute power, expand the power range, monitor power and spectrum, etc. It is also widely used in some important microwave measurement instruments such as vector network analyzers and reflectometers. [0003] As the main frequency band developed by current electronic technology to solve the problem of future electromagnetic wave spectrum congestion, terahertz waves have great scientific value and broad application prospects in object imaging, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/16H04B10/60H04B10/90
CPCH01P5/16H04B10/60H04B10/90
Inventor 杨晓波张波戴炳礼牛中乾管明柳杨樊勇杨晓帆刘珂陈智
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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